A line-voltage-sensorless synchronous rectifier

被引：85
作者：
Kwon, BH [1 ]
Youm, JH
Lim, JW
机构：
[1] Pohang Univ Sci & Technol, Dept Elect & Elect Engn, Pohang 790784, South Korea
[2] Pohang Iron & Steel Co, POSCO, Pohang, South Korea
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 1999年 / 14卷 / 05期
关键词：
current controller; PWM synchronous rectifier; sensorless control;
D O I：
10.1109/63.788502
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A line-voltage-sensorless control for three-phase pulsewidth-modulated (PWM) synchronous rectifiers is presented. A line synchronization and unity power factor control are described. Indirect synchronization without sensing the line voltage allows a standard vector-controlled inverter to be used as a synchronous rectifier without requiring any additional hardware. Furthermore, the line synchronization can be properly operated under line voltage distortion or notching and line frequency variation. All control functions are implemented with a single-chip microcontroller. It is shown via experimental results that the proposed controller gives good performance for the synchronous rectifier.
引用
收藏
页码：966 / 972
页数：7
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